20543948

素因数分解:

$2^2\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 38630592

約数和(自身を除く): 18086644

約数列:

[1, 2, 4, 29, 31, 58, 62, 116, 124, 197, 394, 788, 841, 899, 1682, 1798, 3364, 3596, 5713, 6107, 11426, 12214, 22852, 24428, 26071, 52142, 104284, 165677, 177103, 331354, 354206, 662708, 708412, 5135987, 10271974, 20543948]

約数ペア:

[(1, 20543948), (2, 10271974), (4, 5135987), (29, 708412), (31, 662708), (58, 354206), (62, 331354), (116, 177103), (124, 165677), (197, 104284), (394, 52142), (788, 26071), (841, 24428), (899, 22852), (1682, 12214), (1798, 11426), (3364, 6107), (3596, 5713)]